Machine for boring brush-blocks, &amp;c.



PATE'NTED JULY 23, 1907;

C. E. FLEMMING. MACHINE FOR BORING BRUSHBLOGKS, &0.

APPLICATION FILED SEPT. 13. 1905.

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0. E. PLEMMING. MACHINE FOR BORING BRUSH BLOCKS, 8w.

APPLICATION FILED SEPT. 18, 1905.

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- PATEN'IED JULY 23, 1907.

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PATENTED JULY 23, 1907.

C. E. PLBMMING. MACHINE FOR BORING BRUSH BLOCKS, &.0.

APPLICATION FILED SEPT. 18, 1905.

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Witnesses.-

CARL EDUARD FLEMMING, OF SOHGNHEIDE, GERMANY.

MACHINE FOR BORING BRUSH-BLOCKS, &c.

Specification of Letters Patent.

Patented July 23, 1907,

Original application filed September 3, 1901, Serial No. 74,231. Divided and this application filed September 18, 1905,

. $erial No. 279,009.

To all whom it may concern:

Be it known that I, CARL EDUARD FLEMMING, a citizen of the Kingdom of Saxony, contractor and proprietor of the firm Siichsische Kardatschen-Biirsten & Tinsel-Fabrik Ed. Flemming dz 00., residing at 164 Hauptstrasse, at Schonheide, in the Kingdom of Saxony, German Empire, have invented certain new and useful Improvements in Machines for Boring Brush-Blocks, &c., being a division of my application, Serial No. 74,231, filed September 3, 1901; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in machines for drilling blocks for brushes and for filling bunches of bristles therein and has for its object to provide a construction in which the brush-blocks, mounted in known manner upon a movable frame in front of the boring and driving devices, may be automatically displaced in two directions at right angles to each other so eX- actly, that not only flat or straight but also curved brush-blocks and especially small brush-blocks, for instance, such as for tooth-brushes, may be worked; and the invention consists in certain novel constructions and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the drawings Figure 1 is a side view of a machine embodying my invention; Fig. 2 is a front view thereof; Fig. 3 is a plan, partly in section, of said machine; Fig. 4 is a detail, in perspective view, of the pawl connection; Fig. 5 is a detail of the device serving to disengage the pawl 24; Fig. 6 is an enlarged detail, showing an alternative form of the operating mechanism;

Fig. 7 is a top plan view of the apparatus represented in the preceding figure; Fig. 8 shows a lateral view of the disk 7 seen from another side than that shown in Fig. 1; Fig. 9 is a detail of the pawl arrangement shown from another side than that shown in Fig. 4; and Figs. 10 and 11 are detail views of the mechanism for feeding the blocks transversely of the frame.

The main frame F of the machine carries at the one side the driver A, of known construction, for setting in the bristles, and at the other side the boring-device B, also of known construction and operated, in known manner by known means. Opposite to the said two devices A, B is arranged a rocking frame 0 carrying the brush-block holding devices b and d.

The various mechanisms are operated from the main shaft 1 which is rotated by means of the pulley 1, or the like, as exemplified in Figs. 2 and 3. Keyed to the shaft 1 is a cog-wheel 2,. which gears with a cog-wheel 3 of the same diameter and fixed to a shaft 3 located parallel to the shaft 1. The shaft 3 of the cog-wheel 3 carries two disks 4 and 5 each of which has on its outer side a cam-groove a, as shown in Fig. 1 and in dotted lines in Fig. 2. When the main shaft 1 is rotated the cam-groove a actuates, by means of rods 0, the frame 0 which is pivotally supported at its lower part by and upon the axle 6. By these disks 4 and 5 or, more precisely, by the cam-grooves a in them, the afore-mentioned rods 0 are actuated and the frame C is caused to rock to and fro so that the brush-blocks carried by the latter are moved against and away from the boring device A and the driving device B for setting in the bristles. The disks 4 and 5 might be, of course, replaced by cam disks 6, Figs. 6 and 7, in combination with springs f, the arrangement being then such that the cam-disks or cams a move the frame 0 from the main frame F, whereas the springs f move it towards the latter.

At one side of the rock frame Cis rotatably mounted the disk 7 which is also provided with cam grooves 7, 7 of such configuration that the slides 12 and 13 may thereby be moved as will be more clearly described hereinafter, the first of said slides (12) holding the brushblocks in position by means of set-screws b and tables d.

. The cam grooves 7, 7 of the disk 7 are located upon opposite sides of this disk, and into one of these grooves (7) takes a pin 8 from a sliding bar 9 (Figs. 1 and 2), guided in ways 9, the rear part of said slide 9 being formed into a rack 9, as shown in dotted lines in Fig. 1 and in full lines in Fig. 8, and being thus capable of rotating a cog-wheel 10 which is in gear with said rack 9. The cog-wheel 10 is secured to a vertical shaft 10, to the upper end of which is fixed a cog-wheel 11 which is in gear with a comparatively broad rack 11 attached to, or forming a part of, the rear side of the slide 12 (see especially Figs. 2 and 3). Therefore, as the pin 8 is actuated by the cam groove 7* of the disk 7 during the rotation of the latter, the slide 12 is caused to move to and fro in horizontal direction. The slide 12 is mount- 7 ed in the slide 13 (see especially Figs. 1, 2 and 3) which is so supported that it may be moved vertically up and down. To this end the slide 13 has a projection 14,

which is connected with a vertical bar 15, divided in its length and having its adjacent ends adjustably engaging with a connecting clip 15 by which it may be lengthened or shortened. The other or lower end of said bar 15 is provided with a pin 16 taking into the cam groove 7 at the outer side of the disk 7, which bar plays through a guide 17 secured to the frame 0 and adjacent to said lower end of the bar. When the disk 7 is rotated, the brush-blocks secured to the slide 12 will be displaced horizontally when the form of the cam groove 7 affects the slide 9, while the brush-blocks are moved vertically when the form of the cam groove 7 causes the pin 16 and also the slide 13 to be displaced vertically. The configurations of the cam grooves 7, 7 are such that, by rotating the disk 7 for one tooth, the slide 12 or the slide 13 or both slides 12 and 13, and therefore the brusliblocks, are displaced for a distance corresponding to the distance between two successive holes in the brush-blocks. Apart from said two movements the brush-blocks are moved also. towards and away from the borer A and the driver B for setting in the bristles, by the rocking frame 0, so that while a hole is bored in one brush-block, the bored hole in the other brush-block is charged with the bunch of bristles. Thereafter, the frame 0 rocks backwardly upon the shaft 6 and at the same time the brush-blocks are anew adjusted.

The disk 7 is operated by means of a pawl. 24 (Fig. 1 and 4) and is engaged by a retaining pawl The pawl 24 is actuated from the main shaft I by means of a cog- 7 wheel 18 meshing with a cog-wheel 19 of the same diameter, and upon the shaft 19 of the cog-wheel 19 is located a disk 20 which has at one side a cam-groove 20 and at the other a cam 26. The cam-groove 20 serves to ope rate a lever 22 by a means of the rod 21 vertically guided in a bearing 21 and pivotally connected with the lever 22 by means of a pin 21 sliding in a slot 22 of thelever 22. The latter, pivoted in a bracket 22 at 22, is connected at the other end, with slide 23 by means of a pin 23 which also engages in a slot 23". On the slide 23, adapted to be moved in a vertical line and being guided correspondingly, is secured the pawl 24 by means of a pin 24*. Consequently, if the rod 21 is moved downwardly, the lever 22 turns on its fulcrum "22 the pawl 24 is raised and the disk '7 rotated the space of one tooth. At this moment, the frame 0 having been moved forward against the main frame F so far that the borer A and the driver B for the bristles may commence to work, the brush-blocks, therefore, should remain stationary, and it is, of course, necessary that no further intermittent movement of the disk 7 shall occur, that is to say, the pawl 24 must be thrown out of gear against the action of the spring 25, This is effected by means of the cam 26 (Fig. 5) provided upon the other side of the disk 20, said cam actuating an other lever 28 by means of a spring supported rod 27, and said lever having at its end a cam shaped block 29 (Fig. 1) which is situated somewhat below the heel end of the pawl 24. The rod 27 is connected with the lever 28 by means of pin 27*, which engages'in the slot 28 said lever 28 being pivoted at 28 and carrying at its other end the piece 29. moved downwardly by means of the cam way 26, the lever 28 is turned and throws the pawl 24 out of gear with the teeth of the disk 7, by means of the cam block 29.

From Fig. 5 it may be seen, that when the cam of the groove 20 has effected the rotating of the disk 7 for a tooth, the rod 27 is immediately moved downward and, therefore, the piece 29 is lowered, effecting the disengaging 7 of the pawl 24. This pawl remains in the disengaged position until the boring of the hole in the one block, and the setting in of the bristles in the other block has been performed and the frame 0 is again moved backwards, when the cam-block 29 will be lowered and the pawl will return into gear with the teeth of the disk 7, whereupon lever 22 will again cause the intermittent movement of said disk and of the parts operated by the same. 4

Consequently, if the rod 27 is.

The operation of the improved machine is as follows:

The brush blocks are secured to the slide 12 in such a manner that one block is before the boring device B and the other, provided already with bored holes, before the driving device A. The frame C is then moved toward the said devices and the main shaft 1 is rotated. Owing to the especial configuration and relation of the cam-grooves a of the wheels 4 and 5 and of the camgroove' 20 and cam 26 of the wheel 20, while the frame C is rocked inwardly the pawl 24 is held out of gear with the disk 7; only the boring and driving devices are operated in known manner. When a hole is bored in the one brush-block and a bored hole in the other brushblock is charged with a bunch of bristles, the cam grooves a of the wheels 4 and 5 cause the rods 0 to be displaced so that the frame 0 then rocks away from the boring and driving devices; at the same time, the cam 26 of the wheel 20 permits the rod 27 to be raised by the spring, and the cam-block 29 is lowered so that the pawl 24 may be pressed by the spring 25 into the teeth of the disk 7. The frame 0 rocksinto the extreme farthest position from the boring and driving devices and is there held stationary by the concentric reaches of its actuating cam. While it is thus stationary, the camgroove 20 of the wheel 20 causes the lever 22 to be raised and the disk 7 to be turned for a step by means of the pawl 24 and the slides 12 and 13 are displaced, so that in the one brushblock another hole may be bored and in the other block a new bunch of bristles may be set in. In order to prevent the disk 7 from being turned too far, the cam 26 of the wheel 20, immediately after the pawl 24 is raised, throws the latter out of gear with the disk by means of the' cam block 29'. The frame C is then again carried towards the boring and driving devices, the main shaft 1 and consequently the wheels 2, 3, 4, 18, 19, 20 having finished one rotation, whereupon the process is repeated during the second rotation.

Starting the machine at the commencement proper of work is preferably effected by means of a crank 30 which is in connection with a cog-wheel gearing with another cog-wheel 31 secured to the shaft of the disk 7.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a boring machine, the combination, with a boring device, of-a frame pivotally mounted in front thereof, a slide carried by the frame and movable in a direction at right angles to the movement of the frame, a second slide carried by the first slide and movable in a direction at right angles to the movement of the first slide, means for securing the Work-pieces on the second slide, mechanism for moving the frame to and from the boring device, and independcntly'operable mechanism for moving the two slides relative to each other and to the frame.

2. In a machine of the character described, the combination, with work tools, of a frame mounted for reciprocac .ing' movement in front thereof, a slide carried by the frame and movable in a direction at right angles to the move ment of the frameja second slide carried by the first slide and movable in a direction at right angles to the movement of the first slide, means for securing the work-pieces on the second slide, a cam device for moving the frame to and from the work tools, and independently operating cam de vices for moving the two slides step by step relative to each other and to the frame.

3. In a device of the character described, the combination, with work tools, of a frame pivotally mounted in front thereof, a slide carried by the frame and movable in a direction at right angles to the movement of the frame, a second slide carried by the first slide and movable in a direction at right angles to the movement of the first slide, means for securing the work-pieces on the second slide, a cam device for moving the frame to and from the work tools, a disk provided with a cam groove, a rod secured to the first slide and provided with a pin taking into said cam groove, a broad rack formed on the back of the second slide, a rack-bar having a pin taking into a second cam groove carried by the disk, a spindle provided with two pinions, one gearing with the rack-bar and the other with the broad rack on the second slide, and means for imparting intermittent motion to the cam disk.

4. In a device of the character described, the combination, with work tools, of a frame pivotally mounted in front thereof, a slide carried by the frame and movable in a direction at right angles to the movement of the frame, a second slide carried by the first slide and movable in a direction at right angles to the movement of the first slide, means for securing the work-pieces on the second slide, a

cam device for moving the frame to and from the work tools, a disk provided with a cam groove, a rod secured to the first slide and provided with a pin taking into said cam groove, a broad rack formed on the back of the second slide, a rack-bar having a pin taking into a second cam groove carried by the disk, a spindle provided with two pinions, one gearing with the rack-bar and the other with the broad rack on the second slide, ratchet teeth formed upon the cam disk, a pawl engaging with the ratchet teeth, a cam device for intermittently actuating the pawl, a trip for holding the pawl out of engagement with the ratchet, a cam device for operating the trip, and means for imparting movement to the various cam devices.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

CARL EDUARD FLEMMING.

Witnesses PAUL WEINERT, RICHARD KUNZE. 

